1. What is photovoltaic system?
a system which uses solar cells to convert light into electricity; consists of multiple components, including solar cells, mechanical and electrical connections and mountings and means of regulating and/or modifying the electrical output.
2. Tell me are There Are Any Safety Standards For Solar Power Plant?
Yes there are published safety standards for roof top solar power plants. AEPL will ensure that the supply and installation follows all the safety standards applicable.
3. Explain me how long do photovoltaic (PV) systems last?
A PV system that is designed, installed, and maintained well will operate for more than 20 years. The basic PV module (interconnected, enclosed panel of PV cells) has no moving parts and can last more than 30 years. The best way to ensure and extend the life and effectiveness of your PV system is by having it installed and maintained properly. Experience has shown that most problems occur because of poor or sloppy system installation.
4. Explain me can we use a solar water-heating system to heat our swimming pool?
Using a solar system to heat a swimming pool is the most common use for solar energy in the United States today. Solar pool-heating systems increase an unheated pool's water temperature by 10 degrees or more, and they can extend the swimming season by two to three months.
5. Explain me what is photovoltaics (solar electricity) or "PV"?
What do we mean by photovoltaics? The word itself helps to explain how photovoltaic (PV) or solar electric technologies work. First used in about 1890, the word has two parts: photo, a stem derived from the Greek phos, which means light, and volt, a measurement unit named for Alessandro Volta (1745-1827), a pioneer in the study of electricity. So, photovoltaics could literally be translated as light-electricity. And that's just what photovoltaic materials and devices do; they convert light energy to electricity, as Edmond Becquerel and others discovered in the 18th Century.
6. Tell us can we use photovoltaics (PV) to power our business?
PV systems can be blended into virtually every conceivable structure for commercial buildings. You will find PV being used outdoors for security lighting as well as in structures that serve as covers for parking lots and bus shelters, generating power at the same time.
7. What is electrical efficiency?
useful power output divided by the total electrical power consumed.
8. Tell me what is net metering? Is net metering available where I live and work?
Net metering is a policy that allows homeowners to receive the full retail value for the electricity that their solar energy system produces. The term net metering refers to the method of accounting for the photovoltaic (PV) system's electricity production. Net metering allows homeowners with PV systems to use any excess electricity they produce to offset their electric bill. As the homeowner's PV system produces electricity, the kilowatts are first used for any electric appliances in the home. If the PV system produces more electricity than the homeowner needs, the extra kilowatts are fed into the utility grid.
9. Can we Guarantee The No. Of Units Produced Or The Efficiency Of Solar Plant?
Yes we can guarantee the no. of units produced per year per KWp installed. This guaranteed generation will vary from location to location. The exact guarantee figure will be incorporated in the commercial contract.
In any case since the contract is based on price per KWH, if the plant produces less, the revenue is less. This means, there is an in-built guarantee and incentive for us to produce the most.
10. Tell us what's the difference between PV and other solar energy technologies?
There are four main types of solar energy technologies:
☛ Photovoltaic (PV) systems, which convert sunlight directly to electricity by means of PV cells made of semiconductor materials.
☛ Concentrating solar power (CSP) systems, which concentrate the sun's energy using reflective devices such as troughs or mirror panels to produce heat that is then used to generate electricity.
☛ Solar water heating systems, which contain a solar collector that faces the sun and either heats water directly or heats a "working fluid" that, in turn, is used to heat water.
☛ Transpired solar collectors, or "solar walls," which use solar energy to preheat ventilation air for a building.
11. Explain me what are the benefits of using solar energy to heat water in my home?
First, the fuel is free! Once you recover the higher initial costs of a solar system through reduced or avoided energy costs (that is, lower utility bills), your solar system will require expenditures only for maintenance. And when you include the cost of a solar water heater in a mortgage on a new home, the system often provides a positive monthly cash flow from the first day of ownership.
Second, solar water heaters and other solar technology applications do not pollute. They do not add to the carbon dioxide, nitrogen oxides, sulfur dioxide, and other air pollutants and wastes produced by most of today's power plants, even those that run on natural gas. And they allow you to burn less natural gas in your home, as well.
horizontal angle measured clockwise in degrees from a reference direction, usually the north or south point of the horizon, to the point on the horizon intersected by the object's line of altitude.
a device used to transfer electrical energy from one circuit to another; with an alternating current, a transformer will either raise or lower the voltage as it makes the transfer.
rate of flow of electric charge, measured in amperes.
15. What is diffuse insolation?
solar radiance that is scattered or reflected by atmospheric components, such as clouds, dust, etc.
16. What is alternating current (AC)?
an electric current that reverses direction at regular intervals.
measure of solar radiation energy received on a given surface area in a given time.
18. Tell me what does BOS mean?
Balance of System. This means the rest of the component parts and equipment used in a Solar system that is NOT the solar modules. The remaining portion of the PV system, inverters, disconnects, wiring, conduits, NOT including the PV Modules.
19. What is array in Solar Panel?
photovoltaic modules connected together to provide a single electrical output.
interconnected assembly of solar cells; also called a panel.
21. How much is gigawatt (GW)?
1,000,000,000 watts.
basic unit of a photovoltaic panel.
☛ 1 the power consumed on an electrical circuit.
☛ 2 a power-absorbing device, such as a blender, light bulb, etc.
to add a power-absorbing device to an electrical circuit .
25. What is kilowatt-hour (kWh)?
measure of kilowatt production of power in kilowatts and time in hours.
any source of usable power, as fossil fuel, electricity, or solar radiation.
27. Tell us how much does a solar water-heating system cost?
Unfortunately, there is no one answer to this question. The cost of a solar system depends on a number of factors, such as the size of the system and the particular system manufacturer, retailer, and installer. However, any solar rebates and other incentives available in your area will reduce that total cost.
For solar water heaters and space heaters, you will also be taking into consideration the price of the fuel used to back up the system. In most cases, you will have to add in the cost of supplemental natural gas or electricity to get a fairly accurate estimate of how much you can expect to pay for a solar system.
28. Please explain why should I purchase a PV system?
People decide to buy solar energy systems for a variety of reasons. For example, some individuals buy solar products to preserve the Earth's finite fossil-fuel resources and to reduce air pollution. Others would rather spend their money on an energy-producing improvement to their property than send their money to a utility. Some people like the security of reducing the amount of electricity they buy from their utility, because it makes them less vulnerable to future increases in the price of electricity.
If it's designed correctly, a solar system might be able to provide power during a utility power outage, thereby adding power reliability to your home. Finally, some individuals live in areas where the cost of extending power lines to their home is more expensive than buying a solar energy system.
I have approximately 12 years experience in the electrical equipment industry with 6 of those years being on equipment nearly identical to what you have in place at First Solar GmbH. In your job posting you requested candidates with exposure to A, B, and C. In my current role I am considered the subject matter expert with A, and C. My understanding of B can be classified as intermediate level. If hired, my training time would be minimal compared to someone with less comprehensive experience within A, B, and C.
30. Tell us can The Solar Plant Be Synchronized With Grid Power And Dg Power?
Yes, it can be synchronized. Check the specifications of the inventors – it should mention that it is sync-able to both DG and Grid.
a thin layer of semiconductor material, such as amorphous silicon, which is deposited directly onto a plate of glass. Least efficient of all solar cells.
interconnected network for distributing electricity.
ratio of light reflected from a surface.
34. Tell us what are the components of a photovoltaic (PV) system?
A PV system is made up of different components. These include PV modules (groups of PV cells), which are commonly called PV panels; one or more batteries; a charge regulator or controller for a stand-alone system; an inverter for a utility-grid-connected system and when alternating current (ac) rather than direct current (dc) is required; wiring; and mounting hardware or a framework.
35. Tell me how is a solar electric system designed, installed, and maintained?
You could install a photovoltaic (PV) or solar electric system yourself. But to avoid complications or injury, you will probably want to hire a reputable professional contractor with experience in installing solar systems. PV systems have few moving parts, so they require little maintenance. The components are designed to meet strict dependability and durability standards so they can stand up to the elements. However, they are fairly sophisticated electric systems, so installation usually requires the knowledge and experience of a licensed electrical equipment contractor.
